Surface Finishing

At Koonze, we provide expert surface treatment services to improve the durability, appearance, and performance of your parts.

Our capabilities include coating, polishing, anodizing, and plating, ensuring each part meets the highest quality standards. We focus on enhancing resistance to corrosion, wear, and environmental factors, helping extend the lifespan of your products across various industries.

Surface Finishes	Description	Services	Applicable Materials
As Machined	Standard finish with a surface roughness of 3.2 μm (126 μin), effectively removes sharp edges and deburrs parts for a clean, smooth finish.	CNC machining, Sheet metal fabrication	Metals, Plastics
Sand Blasting	Effectively directs blast media at surfaces to remove coatings and contaminants.	CNC machining, Sheet metal fabrication	Metals, Plastics
Tumbling	Uses barrel or vibratory processes with abrasives to smooth and polish part surfaces.	CNC Machining, Sheet metal fabrication	Metals, Plastics, Glass
Electropolish	An electrochemical process that smooths, polishes, and deburrs metal surfaces to a high-gloss finish.	CNC machining	Stainless steel, Copper, Aluminum
Heat Treatment	An electrochemical process that smooths, polishes, and deburrs metal surfaces, achieving a high-gloss finish.	CNC machining	Stainless steel, Copper, Aluminum
Alodine	A chemical treatment process that offers corrosion protection and prepares surfaces for better paint adhesion.	CNC machining, Sheet metal fabrication	Aluminum, Aerospace Alloys
SPI Finish	SPI Finish standardizes the surface textures of plastic parts, providing finishes ranging from high-gloss to matte, ensuring uniform aesthetics and functionality in injection molding.	Injection molding	Plastics
Anodizing	An electrochemical process that creates a strong, corrosion-resistant oxide layer on metal surfaces.	CNC Machining, Sheet metal fabrication	Aluminum
Teflon Coating	Applies a protective layer of PTFE to reduce friction and enhance corrosion resistance.	CNC machining, Sheet metal fabrication, Injection molding	Metals, Plastics
Black Oxidize	A chemical bath that produces a black oxide coating on metal to enhance corrosion resistance.	CNC machining, Sheet metal fabrication	Steel, Iron
Electroless Plating	Metal coating is applied to substrates through an autocatalytic chemical process.	CNC machining, Injection molding, 3D printing	Metals, Plastics
Electroplating	Electric current is used to reduce dissolved metal cations, creating a solid metal coating.	CNC machining, Sheet metal fabrication	Metals
Painting	Applying paint for decorative enhancements and protective coatings.	CNC machining, Sheet metal fabrication, Injection molding, 3D printing	Metals, Plastics, Wood
Passivation	Chemical treatment to improve the corrosion resistance of metals by eliminating free iron from the surface.	CNC machining, Sheet metal fabrication	Stainless Steel, Other Corrosion-resistant Alloys
Powder Coating	A dry finishing process that uses powdered paint to create a high-quality, durable finish.	CNC machining, Sheet metal fabrication, Injection molding	Metals, Some Plastics
Electrophoresis	A coating process that uses charged particles suspended in a solvent, usually for achieving uniform finishes.	CNC machining, Sheet metal fabrication	Metals, Ceramics
Brushed Finish	Mechanical polishing that creates a unidirectional satin finish.	CNC machining, Sheet metal fabrication	Metals